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CMake/Help/variable/CMAKE_FIND_USE_PACKAGE_REGISTRY.rst
Robert Maynard 1d00ba9ccf Find: find_package prefers variable CMAKE_FIND_USE_REGISTRY
CMake's find control flags should all have a consistent name.
To make this happen we are introducing `CMAKE_FIND_USE_REGISTRY`
and deprecating `CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY`.
2019-07-09 09:38:35 -04:00

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CMAKE_FIND_USE_PACKAGE_REGISTRY
-------------------------------
Controls the searching the :ref:`User Package Registry` by the :command:`find_package`
command.
By default this variable is not set and the behavior will fall back
to that determined by the deprecated :variable:`CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY`
variable. If that is also not set, then `find_package()` will use the
`User Package Registry` unless the `NO_CMAKE_PACKAGE_REGISTRY` option
is provided.
This variable takes precedence over :variable:`CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY`
when both are set.
In some cases, for example to locate only system wide installations, it
is not desirable to use the :ref:`User Package Registry` when searching
for packages. If the :variable:`CMAKE_FIND_USE_PACKAGE_REGISTRY`
variable is ``FALSE``, all the :command:`find_package` commands will skip
the :ref:`User Package Registry` as if they were called with the
``NO_CMAKE_PACKAGE_REGISTRY`` argument.
See also :ref:`Disabling the Package Registry`.
See also the :variable:`CMAKE_FIND_USE_CMAKE_PATH`,
:variable:`CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH`,
:variable:`CMAKE_FIND_USE_CMAKE_SYSTEM_PATH`,
:variable:`CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH`,
and :variable:`CMAKE_FIND_USE_PACKAGE_ROOT_PATH` variables.